Genesis of oceanic oxide gabbros and gabbronorites during reactive melt migration at transform walls (Doldrums Megatransform System; 7–8 N Mid-Atlantic Ridge)
V Basch, A Sanfilippo, SG Skolotnev… - Journal of …, 2022 - academic.oup.com
Abstract The Doldrums Megatransform System (~ 7–8° N, Mid-Atlantic Ridge) shows a
complex architecture including four intra-transform ridge segments bounded by five active …
complex architecture including four intra-transform ridge segments bounded by five active …
Tectonic evolution of Macquarie Island: Oceanic crust, metamorphism, new-type of core complex and transpression
Macquarie Island is the only exposure of oceanic lithosphere still attached to the seafloor.
The entire crustal section and upper-mantle lithosphere is exposed on the Northern Plateau …
The entire crustal section and upper-mantle lithosphere is exposed on the Northern Plateau …
Role of compaction in melt extraction and accumulation at a slow spreading center: Microstructures of olivine gabbros from the Atlantis Bank (IODP Hole U1473A …
The exposure of gabbroic sequences at Oceanic Core Complexes (OCC) along ultraslow-to
slow-spreading ridges permits the study of the processes forming the lower oceanic crust …
slow-spreading ridges permits the study of the processes forming the lower oceanic crust …
Grain size variations record segregation of residual melts in slow‐spreading oceanic crust (Atlantis Bank, 57° E Southwest Indian Ridge)
Beneath slow‐spreading ridges, melt bodies are generally considered to represent
ephemeral magma reservoirs filled with crystal mushes. Formation of the oceanic crust …
ephemeral magma reservoirs filled with crystal mushes. Formation of the oceanic crust …
Formation of lower fast-spread oceanic crust: a structural and geochemical study of troctolites in the Hess Deep Rift (East Pacific Rise)
N Akizawa, M Godard, B Ildefonse, S Arai - Progress in Earth and …, 2023 - Springer
Troctolites were recovered during Integrated Ocean Drilling Program Expedition 345 at the
Hess Deep Rift, next to fast-spreading East Pacific Rise. These troctolites are divided into …
Hess Deep Rift, next to fast-spreading East Pacific Rise. These troctolites are divided into …
Melt-Rock Reaction in the Lower Oceanic Crust and the Influence on the Evolution of Mid-Ocean Ridge Basalts at the Central Indian Ridge (7° 50′–8° 30′ S)
Various crustal processes shape both the lower oceanic crust and mid-ocean ridge basalts
(MORBs). To better understand how these crustal processes influence MORB compositions …
(MORBs). To better understand how these crustal processes influence MORB compositions …
Crustal contamination and hybridization of an embryonic oceanic crust during the Red Sea rifting (Tihama Asir igneous complex, Saudi Arabia)
Abstract The Red Sea rift system represents a key case study of the transition from a
continental to an oceanic rift. The Red Sea rifting initiated in Late Oligocene to Early …
continental to an oceanic rift. The Red Sea rifting initiated in Late Oligocene to Early …
Role of syn-magmatic strain localization in oceanic detachment faulting at ultraslow-spreading ridges
Q Ma, H Zhou, HJB Dick - Earth and Planetary Science Letters, 2024 - Elsevier
Tectonic extension at slow-to ultraslow-spreading mid-ocean ridges is predominantly
accommodated by large-offset detachment faults. Nonetheless, the interplay between these …
accommodated by large-offset detachment faults. Nonetheless, the interplay between these …
Accretion of the lower oceanic crust at fast-spreading ridges: Insights from Hess Deep (East Pacific Rise, IODP Expedition 345)
At mid-ocean ridges, melts that formed during adiabatic melting of a heterogeneous mantle
migrate upwards and ultimately crystallize the oceanic crust. The lower crustal gabbros …
migrate upwards and ultimately crystallize the oceanic crust. The lower crustal gabbros …
Petrological evidence for prominent melt‐mush reactions during slow‐spreading oceanic accretion
The structure of the lithosphere and the associated magmatic systems found in different
locations along slow‐spreading ridges can vary dramatically, from melt‐starved to …
locations along slow‐spreading ridges can vary dramatically, from melt‐starved to …